Using TypeScript for Immutable.js Record.set Type Validation

Currently, I'm utilizing Immutable.js alongside TypeScript for the development of a Redux application.

In essence, the structure of my State object is as follows:

const defaultState = {
  booleanValue: true,
  numberValue: 0,
}

const StateRecord = Immutable.Record(defaultState)

class StateClass extends StateRecord {
  booleanValue: boolean
  numberValue: number
}

const STATE = new StateClass()

(Using this configuration allows for compile-time type checking to catch errors like STATE.booleanValue === 'hi')

I'm wondering if there's a way to implement compile-time type checking for the set method, such as in the expression STATE.set('booleanValue', 'hi'). (I'd like to receive a warning from the compiler stating that

'booleanValue' cannot be set to 'hi'
.)

Alternatively, is there a different setup that would allow Immutable.js and TypeScript to seamlessly work together for both getting and setting operations?

Answer №1

Is there a different configuration that allows Immutable.js and TypeScript to seamlessly integrate for both retrieving and updating data?

Unfortunately, there is no alternative solution without utilizing helper functions to wrap the StateRecord (resulting in additional code duplication and maintenance). In summary, it cannot be achieved directly.

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